Tunnel Tiles These ceramic bricks were likely from the fireproof tunnel that connected the elevators. Related Similar Images ...based on the tags: pipes, rusty, sheet-metal... This little curled yellow thing is one of the last hints that this adobe building was lived in. In case power was lost, this manual signal could direct trains on and off the taconite trestle. Turning the pole would change the color of the light on top and the shape of the metal flags. Not a part of the Foundry, but the Enclosed Body Building. The rebar welded over the windows and the rust patterns with the lighting makes this geometric photos one of my favorites from the year. Part of the 1917 mill that had a little bit of roof left over it–most of this building was open to the sky. The birds loved it, but everything metal was quickly becoming too unstable to walk on. Mammoth Mine overlooks Central City from atop Mammoth Hill. In the distance you can make out Coeur d’Alene Mine (red), which operated from 1885 through 1940. Between the repair shops and the stock department is this odd little structure. No, the walls are not level–it’s not your eyes. The shops slope left, the structure slopes right. Dust explosions were a real risk for grain mills. These funnels helped to filter the air in the mill. The engine room. At the extreme eastern end of the plant is a bank of modern concrete silos. Kodak Portra 160/Mamiya 6.